Articulated multiple buoy marine platform apparatus and...

E - Fixed Constructions – 02 – D

Patent

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Details

E02D 23/00 (2006.01) B63B 1/10 (2006.01) B63B 9/06 (2006.01) B63B 35/44 (2006.01) B63B 1/04 (2006.01)

Patent

CA 2426308

A marine platform 17 (and method of installation) provides a plurality of buoys 13-16, a platform 17 having a peripheral portion that includes a plurality of attachment positions 27, one attachment position for each buoy, and a connection 24,27 that connects each buoy to the platform at a respective attachment position 27, the connection 24,27 allowing for sea state induced buoy motions while minimizing effect on the platform 17. Each connection 24,27 can provide first and second portions 65,66 (or devices) and a load transfer mechanism that transfers load from the first portion 65 to the second portion 66 so that one of the portions (or devices) can be serviced. In an alternative embodiment a method of installation places the platform 17 (including oil and gas drilling and/or production facility next to the buoys 13-16. Ballasting moves the platform 17 and buoys 13-16 relative to one another until connections 24,27 are perfected between each buoy 13-16 and the platform 17.

L'invention concerne une plate-forme maritime (17) et son procédé d'installation. La plate-forme (17), qui comporte plusieurs bouées (13-16), présente une partie périphérique à plusieurs positions d'amarrage (27) pour les différentes bouées, et une attache (24,27) pour chaque bouée, entre la bouée et la plate-forme, correspondant aux positions d'amarrage respectives ( 27), ce qui autorise les mouvements induits par la mer mais réduit au minimum l'effet de ces mouvements sur la plate-forme (17). Chaque attache (24,27) peut présenter des premier et second éléments (65,66) (ou appareils) et un mécanisme de transfert de charge entre les premier (65) et second (66) éléments permettant l'entretien de l'un des éléments (ou appareils). Selon une variante, l'invention concerne un procédé d'installation de la plate-forme (y compris pour le forage pétrolier et gazier et/ou pour l'exploitation d'unité de production) à proximité des bouées (13 -16). Un système de ballast permet de déplacer la plate-forme (17) et les bouées (13-16) en relation mutuelle jusqu'au réglage parfait des attaches (24,27) entre chaque bouée (13-16) et la plate-forme (17).

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